Docker & Containers: Production Infrastructure

Write, review, and architect Dockerfiles, Compose stacks, and container workflows - from single-service dev setups to multi-arch production pipelines with image signing and compliance gates. The goal is minimal, secure, reproducible images that a team can maintain and a QSA can audit.

Target versions: see references/versions.md (verified per the receipt date in that file). Do not restate version numbers here.

This skill covers Dockerfiles, Compose, container hardening, supply chain, registry/CI patterns, and runtime migration across Docker, Podman, Buildah, Skopeo, and containerd.

When to use